Hoisting and dredging bucket.



L. RAUHAUSER. noxswme AND mnneme BUCKET.

APPLICATION FILED MAE. 3, 1909. v 926, 1 32. Patented June 29, 1909.

3 SHEETSSHEET 1.

WITNESSES: 4 I g; INVENTOR 0/ 50am; Razz/miner 3 BY 1 I ATTORNEY 1n!"cams PEYZRS ca, wasmunwu, n. c.

L. RAUHAUSER.

HOISTING AND DREDGING BUCKET.

APPLIOATION FILED MAR.3, 1909.

Patented June 29, 1909.

8HEBTS8HEET 2.

INVENTOR LoazsBw/imaser I WITNESSES:

ATTORNEY 1n; mums psrcks cm, \usmnmou, 04 c L. RAUHAUSER. HOISTING ANDDREDGIN G BUCKET.

APPLICATION rum) MAR. a, 1909.

926, 1 32." I Patented June 29, 1909.

3 SHEETS-SHEET 3.

WITNESSES: v I INVENTOR Zozzwli'azz/zazwer I Wwa 1% ----ATTORNEY msNORRIS PETERS :0., WASHINGTON, D. 6.,

LOUIS RAUHAUSER, OF BROOKLYN, NEW YORK.

HOISTING AND DREDGING BUCKET.

Specification of Letters Patent.

Application filed March 3, 1909.

Patented June 29, 1909.

Serial No. 481,078.

To all whom it may concern:

Be it known that I, LOUIS RAUHAUsER, a citizen of the United States, anda resident of Brooklyn, in the county of Kings and State of New York,have invented certain new and useful Improvements in Hoisting andDredging Buckets, of which the following is a specification.

The invention relates to improvements in hoistingand dredging buckets,and it consists in the novel features and combinations of artshereinafter described, and particular y pointed out in the claims.

The object of the invention is to provide a hoisting and dredging bucketof great durability and efiieienoy and one lacking in compleXity andundue weight of material.

The bucket of my invention comprises two side plates, a bail or frameconnecting said plates, two ivoted oppositely disposed correspondingucket sections and means for o ening said sections in a direction fromand c osing them in a direction toward each other, said means foroperating the bucket sections comprising an upper vertically movablecross-head, a lower vertically movable crosshead, links pivoted at theirouter ends to the upper outer ends of the bucket sections and at theirinner ends to said upper cross-head, links pivoted at their outer endsto the upper outer ends of the bucket sections and at their inner endsto said lower cross-head and sheaves and cables connected with saidcrossheads for actuating them and the links connected with them tooperate the bucket sec tions The invention will be fully understood fromthe detailed description hereinafter presented, reference being had tothe accompanying drawings, in which:

Figure 1 is a vertical transverse section through a hoisting bucketembodying my invention, the section being on the dotted line 1--1 ofFig. 3; Fig. 2 is a corresponding view of the same showing thebucket-sections spread apart; and Fig. 3 is a vertical section of thesame on the dotted line 33 of Fig. 1.

In the drawings, 10 designates the two side plates of the bucketstructure, 1 1 an inverted U-shaped frame connecting the same, 12- thecorres onding bucket sections pivoted, at 13, to sai side plates, 141the upper vertically movable cross-head, 15 the lower vertically movablecross-head, 16 links pivoted to said upper cross-head and the u perouter ends of the bucket-sections, 17 lin is pivoted to said lowercross-head and to the upper outer ends of said bucket-sections, 18 threesheaves carried by the lower cross-head, 19 two sheaves carried by theupper cross-head, and 20 a cable which, as shown in Fig. 3, extendsdownwardly through the upper cross-head and around under the lower lefthand sheave 1S, thence upwardly and over the upper letl' t hand sheave19, thence dowmvardly under the middle sheave 18, thence upwardly overthe upper right hand sheave 19, thence downwardly under the lower righthand sheave 18, thence upwardly to a pin 2.1. on the upper cross-hcad141 to which the cable is firmly tied or otherwise fastened, and thencerip-- wardly to the cable operating means, not shown. One member, 22, ofthe cable is free to travel over the sheaves 01' both crosshoads and theother member, 23, 01' said cable is fastened to the upper cross-head,whereby what is in ell'cct a pair of triple pulley blocks is created.Both members 23 of the cable extend upwardly through a hole in the frame11 and to means, not shown, for alternately pulling on the cablemember23 for opening the bucket-sections and on the cable-memlmr for closingsaid sections. The cable operating means will, as usual, be employedi'or raising and lowering the bucket.

The bucket-sections 1.2 are exactly alike and each has sides and adouuiwardly curved bottom and is pivotally secured to the mainside-plates 10 by short bolts 13 which pass through said plates and thesides of the bucket-section. The bucket-sections have a hinged movementon the bolts 13 and these bolts are at intermediate points between theupper outer and lower inner ends of the ln1c.kotsections. Thebrwket-sections are each equipped with an inner bottom plate 2 1, whichmay be removed and renewed from time to time as may be required andwhose purpose is to avoid as far as possible wear of the materialhandled. on the main bottom of the bucket-sections. Fiach bucket-sectionat its lower edge is provided. with a durable bar 25 having a reasonablysharp outer edge and a reduced or shank inner portion which is insertedbetween the main bottom plate and inner bottom plate 24;. The bars 25relieve the lower edges of the lnrcketsections from wear and alsofacilitate the movement of said edges through the material to behandled.

The vertical sides of the inverted U-shaped frame or bail 1 1 affordguides 26 for the upper cross-head 1 1 and also for the lower crosshead15 when the latter is in its upper position, shown in Fig. 1, said lowercross-head when in its lower position passing below said. guides, asshown in Fig. 2. The upper cross head 14 is in the form of two parallelplates connected at their ends and at said ends engaging the guides 26and having downwardly extending arms 27 to which the inner adjacent endsof the links 16 are pivotally secured by means of bolts 28. The sheaves19 are between the plates of the cross-head 14.

The lower cross-head 15 corresponds in general construction with theupper crosshead 14 and at its ends is provided with the downwardlyextending arms 29 to which the inner adjacent ends of the links 17 arepivotally secured by means of bolts 30. Since when the bucket-sectionsare opened the lower cross-head passes below the guides 26, the ends ofsaid cross-head are provided with the upwardly extending guide rods 31(Fig. 3) which pass upwardly between the sides of the upper cross-headand through holes in the top of the frame 11. The links 16, 17 arestraight bars and at their outer ends are pivotally secured to the upperouter ends of the sides of the bucket-sections by means of bolts 32.

lYhen the bucket-sections 12 are in closed position the links 16, 17 ateach side of the structure define a horizontal diamond-shaped outline,as shown in Fig. 1, and when the bucket-sections are in an open positionsaid links at each side of the bucket define a ver tical diamond-shapedoutline, as shown in. Fig. 2, due to the separation of the inner ends ofthe pairs of links in a vertical direction and the approach of the outerends of said pairs of links in a horizontal direction.

In considering the operation of the bucket, it may be assumed that thelatter is closed, as shown in Fig. 1. The bucket-sections 12 may beopened by pulling on the cable member 23, then lowered to the materialto be handled and then closed to take up a load of said material by apulling force exerted against the cable-member 22. The pull on thecable-member 23 while the cable-m ember 22 is released, is transmittedto the upper cross-head 14: and through said cross-head to the innerends of the links 16, with the result that said cross-head and the innerends of said links are elevated and the lower crosshead 15 and innerends of the links 17 are lowered, whereby the outer ends of the pairs oflinks 16, 17 are caused to approach each other and in doing so pullinwardly against the upper outer ends of the bucket-sections to turnsaid sections on the bolts 13 and move the lower ends of said sectionsapart or to their open position. The bucket-sections will normally openuntil the bolts 28, 32, 13 and the lower edge of the bucket-section ateach side of the vertical center of the bucket structure are in line,and this feature I deem of importance since then when the lower edges ofthe bucket-sections engage the material there is a line of resistancefrom the lower edge of each section up through the bolts 13, bolts 32,links 16 and bolts 28 against the cross-head 1 1 then against the top ofthe frame 11. In Fig. 2 the bucketsections are shown abnormally open soas to get them on the sheet.

hen it is desired to close the bucket-sections on the material to beelevated, the cable-member 23 is released and a pulling force exertedagainst the cable-member 22, with the result that the cross-heads 14, 15are moved toward each other, pulling the inner ends of the pairs oflinks 16, 17 with them and forcing the outer ends of said pairs of linksoutwardly to turn the bucket-sections on the bolts 13 to their closedposition shown in Fig. 1. During the closing of the bucket sectionstheir lower edges travel on arcs of circles whose centers are the bolts13 and hence they force their way downwardly into the material to behandled and take up a proper quantity thereof.

I prefer to construct the bucket-sections and main side-plates of sheetmetal or rolled plate and will re-inforce the same at their edges in anyappropriate manner.

What I claim as my invention and desire to secure by Letters-Patent, is:

1. A hoisting and dredging bucket comprising sides, means connectingsaid sides, corresponding bucket-sections pivotally secured below theirupper ends to said sides, upper and lower cross-heads between saidsides, guides for said cross-heads, upper links pivoted to said. uppercross-head and to the upper ends of the bucket-sections, lower linkspivoted to the lower cross-head and to the upper ends of saidbucket-sections, and means for causing said crossheads to separate andapproach each other for actuating said links to open and close saidbucket-sections, said links defining a horizontal diamond when thebucketsections are closed and a vertical diamond when said sections areopen; substantially as set forth.

2.- A hoisting and dredging bucket comprising sides, means connectingsaid sides, corresponding bucket-sections pivotally secured below theirupper ends to said sides, upper and lower cross-heads between saidsides, guides for said cross-heads, upper links pivoted to said uppercross-head and to the upper ends of the bucket-sections, lower linkspivoted to the lower cross-head and to the upper ends of saidbucket-sections, and means for causing said cross-heads to separate andapproach each other for actuating said links to open and close'saidbucketsections, said links defining a horizontal diamond when the bucketsections are closed and a vertical diamond when said sections are open,the means for effecting the movement of said eross-heads con1p1'is ing aseries of sheaves carried by said crossheads, a cable having a rigidconnection with the upper cross-head for pulling the same upwardly toopen the bucket-sections, and a cable fastened at one end to the uppercross-head and passing back and forth over the sheaves of bothcross-heads and then upwardly forpulling on the lower cross-head toclose the bucket sections; substantially as set forth.

3. A hoisting and dredging bucket comprising sides, means connectingsaid sides, corresponding bucket-sections pivotally secured below theirupper ends to said sides, upper and lower cross-heads between saidsides, guides for said cross-heads, upper links pivoted to said uppercross-head and to the upper ends of the bucketsections, lower linkspivoted to the lower cross-head and to the upper ends of saidbucket-sections, and means for causing said cross-heads to separate andapproach each other for actuatingsaid links to open and close saidbueketsections, said bucket-sections having inner protecting bottomplates (24) capable of renewal; substantially as set forth.

4. A hoisting and dredging bucket comprising sides, means connectingsaid sides, corresponding bucket-sections pivotally secured below theirupper ends to said sides, upper and lower cross-heads between saidsides, guides for said cross-heads, upper links pivoted to said uppercrosshead and to the upper ends of the lmeket-sections, lower linkspivoted to the lower cross-head and to the upper ends of saidbucket-sections, and means for causing said cross-heads to separate andapproach each other for actuating said links to 0 um and close saidbucket-seetions, said bucket-sections having inner protectingbottom-plates (24) and edge bars (25) having outer beveled edges andsecured at their shank portions between the inner and outer bottomplates of the bucket-sections; substantially as set forth.

Signed at New York city, in the county of New York and State of NewYork, this 2nd day of March A. l). 1909.

LOU IS RA U HAUSER.

itnesses:

ARTHUR MARION, CHAS. O. GILL.

